Liquidating a position before it was ever paid for with settled funds is considered a "good faith violation" because no good faith effort was made to deposit additional cash into the account prior to settlement date.
1. Good faith violation example, Sam:
If Sam sells ABC stock prior to Tuesday (the settlement date of the XYZ sale), the transaction would be deemed a good faith violation because ABC stock was sold before the account had sufficient funds to fully pay for the purchase.
2. Good faith violation example, Tony:
At this point, Tony has not incurred a good faith violation because he had sufficient settled funds to pay for the purchase of XYZ stock at the time of the purchase. However:
Consequences: If you incur three good faith violations in a 12-month period in a cash account, your brokerage firm will restrict your account. This means you will only be able to buy securities if you have sufficient settled cash in the account prior to placing a trade. This restriction will be effective for 90 calendar days.